what is service Unknown - 4.29 G ?

hi,
On all my mikrotik devices, when i click on settings i see a unknown - 4.29 G service, whatever services i’m probing on the device. Since i’ve this problem, my dude client crashs all the time when clicking on settings, sometimes it works after few minutes building the window with 100% cpu on the dude client. I’m not sure about the connection between this unknown service and crashes but it looks like it is connected, before it was working fine and without this unknown service. Does anyone has the same problem?
Btw, i use dude 3 b4.
thx.